I think there are probably no books or movies about the Chin because of his secretive nature. He wasn't the kind of guy who dealt with a lot of different people, just a very small and trustworthy inner circle. None of those people have ever flipped either, so there is no reason for them to write a book or talk, because they would incriminate themselves. Being so secretive there can't be books or movies made about you is a good sign for a mafia boss if you ask me.